{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204138",
    "entityType": "User",
    "nonce": "0xf995cfaf4459b7dfc788923f1d4ba385c6a5e8d43e71a39eca80739b5ecbbed9",
    "signature": "0xd6190413ceab6e3ef01434e4a6a8673fc327e05cab9e29a6c7bf9aac5db8adcb6d659750215b4ada5d554ba99d740a66f1fe0d73ff8d3c0c64a1abc4b3ad3d671b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}